Seattle, WA

7:55 AM PDT on June 23, 2018 (GMT -0700)
Seattle-Tacoma International

Weather History for KSEA - October, 2001

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Saturday, October 20, 2001

  Actual Average Record
Temperature  
Mean Temperature 46 °F 52 °F  
Max Temperature 50 °F 58 °F 69 °F (1987)
Min Temperature 42 °F 45 °F 29 °F (1949)
Degree Days  
Heating Degree Days 19 13  
Month to date heating degree days 215  
Since 1 July heating degree days 432  
Cooling Degree Days 0 0  
Month to date cooling degree days 0  
Year to date cooling degree days 189  
Moisture  
Dew Point 44 °F    
Average Humidity 92    
Maximum Humidity 100    
Minimum Humidity 80    
Precipitation  
Precipitation 0.00 in 0.12 in 5.02 in (2003)
Month to date precipitation 1.85  
Year to date precipitation 23.94  
Snow  
Snow 0.00 in - - ()
Month to date snowfall  
Since 1 July snowfall  
Snow Depth -    
Sea Level Pressure  
Sea Level Pressure 30.13 in    
Wind  
Wind Speed 6 mph (NNE)    
Max Wind Speed 10 mph    
Max Gust Speed -    
Visibility 7 miles    
Events Fog    
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

Daily Weather History Graph

Daily Weather History Graph

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Astronomy

Oct. 20, 2001 Rise Set
Actual Time 7:35 AM PDT 6:11 PM PDT
Civil Twilight 7:04 AM PDT 6:42 PM PDT
Nautical Twilight 6:28 AM PDT 7:18 PM PDT
Astronomical Twilight 5:52 AM PDT 7:54 PM PDT
Moon 12:11 PM PDT (10/20) 8:53 PM PDT (10/20)
Length of Visible Light 11h 38m
Length of Day
10h 36m
Waxing Crescent, 19% of the Moon is Illuminated
Oct 20
Waxing Crescent
Oct 23
First Quarter
Oct 31
Full
Nov 8
Last Quarter
Nov 14
New

Hourly Weather History & Observations

Time (PDT) Temp. Windchill Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:56 AM 46.0 °F 44.8 °F 44.1 °F 93% 30.15 in 10.0 mi NE 3.5 mph - N/A   Scattered Clouds
1:56 AM 44.1 °F 40.1 °F 43.0 °F 96% 30.15 in 10.0 mi NNE 6.9 mph - N/A   Scattered Clouds
2:56 AM 44.1 °F 39.5 °F 43.0 °F 96% 30.15 in 10.0 mi NNE 8.1 mph - N/A   Scattered Clouds
3:56 AM 46.0 °F 41.0 °F 44.1 °F 93% 30.14 in 10.0 mi NE 10.4 mph - N/A   Scattered Clouds
4:56 AM 44.1 °F 39.5 °F 43.0 °F 96% 30.13 in 10.0 mi NNE 8.1 mph - N/A   Scattered Clouds
5:42 AM 44.6 °F 40.2 °F 44.6 °F 100% 30.13 in 3.0 mi NNE 8.1 mph - N/A   Scattered Clouds
5:56 AM 44.1 °F 40.1 °F 44.1 °F 100% 30.14 in 0.2 mi North 6.9 mph - N/A Fog Fog
6:31 AM 44.6 °F 40.2 °F 44.6 °F 100% 30.13 in 1.0 mi NNE 8.1 mph - N/A   Mostly Cloudy
6:56 AM 43.0 °F 40.3 °F 43.0 °F 100% 30.14 in 1.5 mi NNE 4.6 mph - N/A   Mostly Cloudy
7:14 AM 42.8 °F - 42.8 °F 100% 30.14 in 0.8 mi Calm Calm - N/A   Mostly Cloudy
7:56 AM 45.0 °F 40.1 °F 44.1 °F 97% 30.14 in 1.5 mi NE 9.2 mph - N/A   Overcast
8:33 AM 44.6 °F 40.2 °F 44.6 °F 100% 30.14 in 2.0 mi NE 8.1 mph - N/A   Overcast
8:56 AM 45.0 °F 40.1 °F 44.1 °F 97% 30.15 in 2.0 mi North 9.2 mph - N/A   Overcast
9:26 AM 44.6 °F 40.7 °F 44.6 °F 100% 30.14 in 4.0 mi North 6.9 mph - N/A   Overcast
9:56 AM 46.0 °F 41.4 °F 44.1 °F 93% 30.15 in 4.0 mi North 9.2 mph - N/A   Overcast
10:56 AM 46.9 °F - 44.1 °F 90% 30.15 in 7.0 mi North 6.9 mph - N/A   Overcast
11:56 AM 46.0 °F 42.5 °F 44.1 °F 93% 30.14 in 7.0 mi North 6.9 mph - N/A   Overcast
12:56 PM 48.0 °F - 44.1 °F 86% 30.13 in 10.0 mi Variable 5.8 mph - N/A   Overcast
1:56 PM 48.9 °F - 44.1 °F 83% 30.11 in 10.0 mi Variable 3.5 mph - N/A   Overcast
2:46 PM 50.0 °F - 44.6 °F 82% 30.09 in 10.0 mi NNE 5.8 mph - N/A   Mostly Cloudy
2:56 PM 50.0 °F - 44.1 °F 80% 30.10 in 10.0 mi North 6.9 mph - N/A   Mostly Cloudy
3:14 PM 50.0 °F - 44.6 °F 82% 30.09 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
3:56 PM 50.0 °F - 44.1 °F 80% 30.08 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
4:56 PM 50.0 °F - 44.1 °F 80% 30.06 in 10.0 mi Calm Calm - N/A   Overcast
5:56 PM 48.9 °F - 44.1 °F 83% 30.06 in 10.0 mi NNE 3.5 mph - N/A   Overcast